﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace MKS.model
{
    public   class BuyGoodsInfo :GoodsInfo
    {
        public int Buy { get; set; }
        public double xiaoji 
        {
            get
            {
                return this.SalePrice * Buy;
            }
           
         }
    }
}
